make AlcaBeamMonitor hoard less memory

[mmusich]

PR description:

This PR is meant to partially address #42995 by means of storing the vertex position and errors for the vertices of interest in a dedicated struct within BeamSpotInfo instead of copying the raw reco::Vertex objects directly in it.

PR validation:

cmssw compiles, will be tested in PR tests.

If this PR is a backport please specify the original PR and why you need to backport that PR. If this PR will be backported please specify to which release cycle the backport is meant for:

Not a backport, but will be backported to (at least) 14.1.X if successful.

[cmsbuild]

cms-bot internal usage

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-46451/42308

[cmsbuild]

A new Pull Request was created by @mmusich for master.

It involves the following packages:

• DQM/BeamMonitor (dqm, db)

@antoniovagnerini, @atpathak, @cmsbuild, @consuegs, @francescobrivio, @nothingface0, @perrotta, @rvenditti, @syuvivida, @tjavaid can you please review it and eventually sign? Thanks.
@JanChyczynski, @PonIlya, @francescobrivio, @mmusich, @rsreds, @yuanchao this is something you requested to watch as well.
@antoniovilela, @mandrenguyen, @rappoccio, @sextonkennedy you are the release manager for this.

cms-bot commands are listed here

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-46451/42311

[cmsbuild]

Pull request #46451 was updated. @antoniovagnerini, @atpathak, @cmsbuild, @consuegs, @francescobrivio, @nothingface0, @perrotta, @rvenditti, @syuvivida, @tjavaid can you please check and sign again.

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-46451/42312

[cmsbuild]

Pull request #46451 was updated. @antoniovagnerini, @atpathak, @cmsbuild, @consuegs, @francescobrivio, @nothingface0, @perrotta, @rvenditti, @syuvivida, @tjavaid can you please check and sign again.

[mmusich]

@cmsbuild, please test

[cmsbuild]

+1

Size: This PR adds an extra 24KB to repository
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-8749e7/42305/summary.html
COMMIT: 1cff3b2
CMSSW: CMSSW_14_2_X_2024-10-18-2300/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmssw/46451/42305/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• No significant changes to the logs found
• Reco comparison results: 10 differences found in the comparisons
• DQMHistoTests: Total files compared: 47
• DQMHistoTests: Total histograms compared: 3673027
• DQMHistoTests: Total failures: 437
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3672570
• DQMHistoTests: Total skipped: 20
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 46 files compared)
• Checked 205 log files, 176 edm output root files, 47 DQM output files
• TriggerResults: no differences found

[perrotta]

+db

[mmusich]

type performance-improvements

[antoniovagnerini]

+1

• P5 tests successful

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next master IBs (tests are also fine). This pull request will now be reviewed by the release team before it's merged. @sextonkennedy, @antoniovilela, @rappoccio, @mandrenguyen (and backports should be raised in the release meeting by the corresponding L2)

[mandrenguyen]

+1